Rant
I'm going to need people to understand that CDDs aren't the only disorders that cause identity disturbance/alteration and people with those other disorders deserve terms that help describe what they experience.
Anti-endo folk are always on about how "endos aren't systems and need to make their own terms!". But when people make terms that are specifically stated that they are NOT system related (polymind, multiself), they get grouped into being "another term for endo systems".
This is what I experienced before I moved to pro-endo spaces. I experienced disordered identity disturbance and needed a term that would describe what I went through and helped me. I knew I wasn't a CDD system and I knew endo systems were "bad" so I found alternative, non-system, terms, polymind and multiself. BUT! Turns out using these terms that were specifically made to be non-system related were "too similar to systems" and were "just as ableist as endos"!
So I decided if this community doesn't accept the experience and terms I use for my disorder, I'm going to the one that does, pro-endos. And when I did start identifying the parts of my identity/self (with or without system terms), it helped with coping and understanding. I felt more grounded and I could more easily manage myself when I knew who I was in that moment.
Some things (in this case, disorders) may be similar, have tools that seem similar, and/or have similar terms, and that's ok! That doesn't mean that one thing is like the other or trying to be like it. Calling people ableist because their disordered experience is too similar to another disorder is ableist in itself.
So please, someone who has a similar experience to you isn't trying to be like you. These people, especially people with *disorders*, shouldn't be called ableist because they need a term that helps them.
